Metal window



J. E. DENNIS METAL WINDOW Aug. 5, 1930.

Filed March 8, 1928 Irn enfor. John Elie/1n is.

Patented Aug. 5, 1930 UNITED STATES JOHN E. DENNIS, OF LONDON, ONTARIO,CANADA METAL WINDOW Application filed March 8,

The principal objects of the invention are to devise a simple, strongand durable form of window frame construction which will enable theplacing and removing of the sash i in a very simple manner.

The principal features of the invention consist in the novelconstruction of a box frame and the construction and arrangement ofremovable flanged strips thereon whereby adjustable guiding recesses areformed to receive the flanges of the window sash.

In the drawings, Figure 1 is a broken sectional perspective view of awindow constructed in accordance with this invention.

Figure 2 is an enlarged vertical sectional view of the window structure.

Figure 3 is ai transverse sectional view taken through both upper andlower sashes.

In the construction herein shown, the box 29 frame 1 is formed ofsubstantially rectangular cross section having a longitudinal rib 2formed at the outward side. A flanged strip 3 is secured to the outerface of the frame and the flange 4 thereof is secured 25 to the edge 5of the rib 2 so that the edge of the flange projects inwardly.

A plurality of lugs 6 are punched up from the inner side 7 of the frameadjacent to the rib 2 and are pointed away from the rib.

A flanged metal strip 8 of substantially U-shape is placed'against theinner face of the box frame with the flanged edge 9 extending under thelugs 6. The other flanged edge 10 of the strip 8 is provided with aplurality of. transverse slots 11 through which the fastening screws 12extend.

'T he strip 8 is formed with doubled flanged edges 13 and 14 whichextend parallel with the face of the box frame in alignment with theflange 4 of the strip 3. The edge 13 is spaced from the longitudinaledge of the flange 4 a distance suflicient to receive in a snug slidingfit the flange 15 of the sash 16. The slot thus formed may be adjustedby loosening the screws 12 and moving the strip toward or from theflange 4. The lugs 6 are set at an angle so that they may be readilyadjusted.

A Z-shaped strip 17 of a corresponding depth to the depth of the strip 8is secured 1928. Serial No. 260,196.

form a snug sliding contact with the flat,

inward faces tively. I

The flanges 15 and 21 extending intothe' slotted structure describedform an effective wind break which together with the surface Contact ofthe webs 15. a nd 2l provide' a substantially dust and air tight joint.i Itw ill also be noted that the flanges 15 and 21 are of the strips 8and respecsecure an airtight joint.

. The continuation 23 of the flange 21 at the bottom of the lower sashfor'ms a bevelled s2e5 al with the bevelled' surface 24 of the'jsillflaredslightly outward to more effectively bottonirail 26 of the'topsash is formed I with abevelled groove 27 into which a bevelledflan'g e28 of the top rail'29 of the lower sash engages in an air} and dusttight j oint. lt'will be readily understood that a" cons'truction suchas described will enable the sash'be'lng placed infpositionjandindividual ly aid just ed in a very simple and expeditious manner. 7Further, when it isdesired f to' remove a sashfor any reasoniti'smerelyn'ed essary to remove the few lrolding' screws from the strip17 and 'slipthe stripsfout of place to allow the lower sash to beremoved and ifit be desi-red-toiremovethe ,uppersash the removal of thescrews allows of the removal of the strip 8, when the sash may bewithdrawn from the frame.

It will-also be seen that if by'reasonof wear thesash become loose intheifram'e', the strips Sand 17 may be adjusted byzsimplyloo'sening theholding screws'and'then adjusting the strips into closer contact withthe sash.

The various parts are of simple and inexpensive construction and theyare very easily assembled.

What I claim as my invention is 1. In a metal window, the combinationwith T-bar sash, of a closed box frame having a flange extendinginwardly toward the upper sash to slidably engage the projecting flangethereof, a longitudinal flanged strip adjustably and removably securedto the inner face of the box frame and having a sashengaging portionspaced from the inner Wall ofsaid frame and slidably engaging the weband flange of the upper sash and the flange of the lower sash, and aZ-shaped flange strip having one of its edge flanges adj ustably andremovably secured to the inner wall of the box frame and supporting theother edge flange in slidable yielding engagement with the sash frame.

2. In a metal window, a box frame having a longitudinal rib at theoutward side of its inner wall, said inner wallhaving aplurality ofvertically aligned angularly disposed lugs projecting therefrom adjacentsaid rib, a U-shaped strip having the edge portions flanged laterallyand abutting the inner wall of said frame in flat surface contact withone of said flanged edges engaging said wall lugs, a Z-shaped striphaving a laterally flanged edge portion abutting the inner wall of saidframe in flat surface contact, the free laterally flanged edge of said Ustrip and the laterally flanged edge portion of said Z strip each havinga plurality of vertically spaced horizontally extending slots formedtherein for the reception of fastening screws, fasteningscrews extendingthrough said slotsinto the inner wall of said box frame and securingsaid U and Z-shaped strips in horizontally adjusted position and T-barsashhaving their flanges extending snugly between said rib and theadjacent-adjustably secured strip 7 andbetween the adjustablysecuredstrips. 3. In a metal window, the combination with a -T barsashrand a box frame having a V flatwall closing its inner side and afixed flange spaced inwardly from the. inner side thereoftosl-idablyengage the outer side of the upper sash in edge contact, of adouble flanged longitudinal strip securedto the inner wall of said frameandlaterally adjustable thereon and havingfits intermediate portionengaglng the web of the upper sash in fiat surface contact and formedwith lateral flanges spaced parallelly from the inner wall of the frameand engaging in edge contact with the adjacent faeesandthe flanges ofthe upper and lower sash, and a longitudinal strip secured to the innerwall of the box frame and laterally adjustable thereon and having, aflanged portion spaced from the mn'er'wall of said frame toengage theweb and flange of the lower sash.

JOHN ninnruris.

